The role of an electromagnetic environment model in spectrum management

The role of an electromagnetic (EM) environment model is spectrum management is developed. Spectrum management is traced from electromagnetic compatibility (EMC) considerations in international agreements through related domestic law to the fundamental spectrum management procedures -- allocation, allotment, and assignment. The need for a model of the EM environment is derived from requirements of allocation, allotment, and assignment proceedings. Data elements required to support an EM environment model for spectrum management purposes are reviewed. An outline and derivation of a general EM environment model is given. The ways systems respond to the EM environment are cataloged and reviewed so that specific applications of an EM environment model are readily apparent. Applications and limitations of current models are discussed.